Costco is selling more cars than ever before by offering one key perk (COST)

Reuters Costco's auto program sold more than 520,000 cars in 2017. The budget retailer grew car sales by 6% in a year when the industry's sales slumped. Costco's biggest advantage over competitors is that it has fixed prices, meaning customers don't have to bargain when making their car purchase. Costco's car business is thriving thanks to a perk that sets it apart from the competition.See the rest of the story at Business Insider NOW WATCH: What it's really like inside Amazon's new no-line groc...